XML manipulation. 2 Input source XML - xslt

Question

I have got 2 source to the XSLT, which needs to be mapped to the target. Have given below the source and desired output. The first source XML is in a collection which needs to be iterated to fetch the value.
Input Payload:
XML 1:
<ParticipentsCollection>
<Participents>
<Email>PM#y.com</Email>
<Role>PM</Role>
</Participents>
<Participents>
<Email>BM#y.com</Email>
<Role>BM</Role>
</Participents>
<Participents>
<Email>CM#y.com</Email>
<Role>CM</Role>
</Participents>
</ParticipentsCollection>
XML 2:
<Project>
<ID>1</ID>
<Name>XYZ</Name>
<Status>Req Gathering</Status>
</Project>
Desired Output:
<ProjectDetails>
<ID>1</ID>
<Name>XYZ</Name>
<Status>Req Gathering</Status>
<PM>PM#y.com</PM>
<BM>PM#y.com</BM>
<CM>>CM#y.com</CM>
</ProjectDetails>

Answer 1

If you are using XSLT 1.0 use:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:exslt="http://exslt.org/common"
xmlns:msxsl="urn:schemas-microsoft-com:xslt"
exclude-result-prefixes="exslt msxsl">
<xsl:output method="xml" indent="yes"/>
<xsl:param name="Doc2"><xsl:copy><xsl:copy-of select="document('Untitled2.xml')/Project"></xsl:copy-of></xsl:copy></xsl:param>
<xsl:template match="ParticipentsCollection">
<ProjectDetails>
<xsl:copy-of select="exslt:node-set($Doc2)/Project/*"/>
<xsl:for-each select="Participents">
<xsl:element name="{Role}"><xsl:value-of select="Email"/></xsl:element>
</xsl:for-each>
</ProjectDetails>
</xsl:template>
</xsl:stylesheet>
and if 2.0 use:
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" indent="yes"/>
<xsl:param name="Doc2"><xsl:copy><xsl:copy-of select="document('Untitled2.xml')/Project"></xsl:copy-of></xsl:copy></xsl:param>
<xsl:template match="ParticipentsCollection">
<ProjectDetails>
<xsl:copy-of select="$Doc2/Project/*"/>
<xsl:for-each select="Participents">
<xsl:element name="{Role}"><xsl:value-of select="Email"/></xsl:element>
</xsl:for-each>
</ProjectDetails>
</xsl:template>
</xsl:stylesheet>
I am running this XSLT on XML1 and keeping XML2 in $Doc2 param to get output:
<ProjectDetails>
<ID>1</ID>
<Name>XYZ</Name>
<Status>Req Gathering</Status>
<PM>PM#y.com</PM>
<BM>BM#y.com</BM>
<CM>CM#y.com</CM>
</ProjectDetails>